Question

Natural rubber is heated with an element X to make it hard, strong, and more elastic. X is

• A. Zinc
• B. Sulphur
• C. Lead
• D. ${\mathrm{H}}_2$

Answer 1

The correct option is B

Sulphur

Explanation:

1.The rubber that is extracted from naturally occurring sources is determined as natural rubber. It is obtained from latex and is a polymer of Isoprene.

2. To make the rubber hard, strong, and highly elastic, vulcanization of rubber is done. In this process, cross-linking in the linear chain of natural rubber occurs by sulphur atoms. Thus, the heating of natural rubber with sulphur makes it hard, more elastic, and strong.

Final answer:

Hence, option (B) is correct.